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- W2139832014 abstract "We propose a new SNR estimation method based on the preamble for OFDM systems in frequency selective channels. The OFDM training symbols in the preamble are equalized by the known data in frequency domain and employed to estimate the noise variance. The second order moments of the received symbols are used to estimate the signal plus noise power in the OFDM packets. The SNRs on the subchannels and the average SNR of the packets can all be estimated. Simulation results show that the proposed method is robust to frequency selectivity in wireless channels, and its performance is considerably improved compared with the available methods." @default.
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- W2139832014 date "2009-08-01" @default.
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- W2139832014 title "SNR estimation algorithm based on the preamble for OFDM systems in frequency selective channels" @default.
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- W2139832014 doi "https://doi.org/10.1109/tcomm.2008.08.060406" @default.
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